<template>
    <div>
        用户列表
        <!-- 面包屑导航 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>权限管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!-- 用户列表主体 -->
        <el-card>
            <el-row :gutter="25">
                <!-- 搜索区域 -->
                <el-col :span="10">
                    <el-input placeholder="请输入搜索内容" v-model="queryInfo.query" clearable @clear="getUserList">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <!-- 搜索按钮 -->
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 用户列表 border边框 stripe隔行变色 -->
            <el-table :data="userList" border stripe>
                <!-- 索引列 -->
                <el-table-column type="index"></el-table-column>
                <el-table-column label="用户名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="密码" prop="password"></el-table-column>
                <el-table-column label="角色" prop="role"></el-table-column>
                <el-table-column label="状态" prop="state">
                <!-- 状态作用域插槽 -->
                    <template slot-scope="scope">
                        <!-- {{ scope.row }} 每一行封存的数据-->
                        <el-switch v-model="scope.row.state" @change="userStateChanged(scope.row)"></el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作">
                    <template slot-scope="scope">
                        <!-- 修改 -->
                        <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                        <!-- 删除 -->
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="deleteUser(scope.row.id)"></el-button>
                        <!-- 权限 -->
                        <el-tooltip effect="dark" content="分配权限" placement="top-start" :enterable="false">
                            <!--文字提示 enterable 隐藏-->
                            <el-button type="warning" icon="el-icon-setting" size="mini"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>

            <!-- 分页组件 size-change 每页最大变化 current-change 当前最大变化 layout功能组件 -->
            <div>
                <el-pagination
                    @size-change="handleSizeChange"
                    @current-change="handleCurrentChange"
                    :current-page="queryInfo.pageNum"
                    :page-sizes="[1, 2, 7, 100]"
                    :page-size="queryInfo.pageSize"
                    layout="total, sizes, prev, pager, next, jumper"
                    :total="total"
                >
                </el-pagination>
            </div>
        </el-card>

        <!-- 新增用户区域 -->
        <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                <!-- 新增用户名 -->
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <!-- 新增密码 -->
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <!-- 新增电子邮箱 -->
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 修改按钮弹出对话框 -->
        <el-dialog title="修改用户信息" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
            <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
                <!-- 修改用户名 -->
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <!-- 修改密码 -->
                <el-form-item label="密码" prop="password">
                    <el-input v-model="editForm.password"></el-input>
                </el-form-item>
                <!-- 修改电子邮箱 -->
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>
<script>
export default {
  created() {
    this.getUserList();
  },
  data() {
    return {
      // 查询信息实体
      queryInfo: {
        query: "", // 查询信息
        pageNum: 1, // 当前页
        pageSize: 5, // 每页最大数
      },
      userList: [], // 用户列表
      total: 0, // 总记录数
      addDialogVisible: false,
      // 添加用户 按钮表单
      addForm: {
        username: "",
        password: "",
        email: "",
      },
      // 修改用户信息
      editForm: {},
      // 显示/隐藏修改用户栏
      editDialogVisible: false,
      // 添加用户按钮 表单验证
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 5,
            max: 20,
            message: "长度在 5 到 15 个字符",
            trigger: "blur",
          },
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 20,
            message: "长度在 6 到 20 个字符",
            trigger: "blur",
          },
        ],
        email: [
          { required: true, message: "请输入电子邮箱", trigger: "blur" },
          {
            min: 6,
            max: 30,
            message: "长度在 6 到 30 个字符",
            trigger: "blur",
          },
        ],
      },
      // 修改用户按钮 表单验证
      editFormRules: {
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 20,
            message: "长度在 6 到 20 个字符",
            trigger: "blur",
          },
        ],
        email: [
          { required: true, message: "请输入电子邮箱", trigger: "blur" },
          {
            min: 6,
            max: 30,
            message: "长度在 6 到 30 个字符",
            trigger: "blur",
          },
        ],
      },
    };
  },
  methods: {
    // 获取所有用户
    async getUserList() {
      const { data: res } = await this.$http.get("alluser", {
        params: this.queryInfo,
      });
      this.userList = res.data; // 用户列表数据封装
      this.total = res.numbers; // 总用户数封装
    },
    handleSizeChange(newSize) {
      this.queryInfo.pageSize = newSize;
      this.getUserList();
    },
    // pageNum的触发动作
    handleCurrentChange(newPage) {
      this.queryInfo.pageNum = newPage;
      this.getUserList();
    },
    // 状态按钮逻辑,修改用户状态
    async userStateChanged(userInfo) {
      const { data: res } = await this.$http.put(
        `userstate?id=${userInfo.id}&state=${userInfo.state}`
      );
      if (res != "success") {
        userInfo.id = !userInfo.id;
        return this.$message.error("操作失败!!!");
      }
      this.$message.success("操作成功!!!");
    },
    addDialogClosed() {
      this.$refs.addFormRef.resetFields();
    },
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return;
        const { data: res } = await this.$http.post("addUser", this.addForm);
        if (res != "success") {
          return this.$message.error("操作失败!!!");
        }
        this.$message.success("操作成功!!!");
        this.addDialogVisible = false;
        this.getUserList();
      });
    },

    // 根据“id”主键删除用户
    async deleteUser(id) {
      const confirmResult = await this.$confirm(
        "此操作将永久删除用户,是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }
      ).catch((err) => err);
      if (confirmResult != "confirm") {
        return this.$message.info("已取消删除");
      }
      const { data: res } = await this.$http.delete("deleteUser?id=" + id);
      if (res != "success") {
        return this.$message.error("删除失败!");
      }
      this.$message.success("删除成功!");
      this.getUserList();
    },

    // 显示修改对话框
    async showEditDialog(id) {
      const { data: res } = await this.$http.get("getupdata?id=" + id);
      this.editForm = res; //查询出来的用户信息反填到编辑表单
      this.editDialogVisible = true; //弹出编辑对话框
    },
    // 关闭窗口
    editDialogClosed() {
      this.$refs.editFormRef.resetFields(); // 重置信息
    },
    // 确定修改
    editUserInfo() {
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) return;
        const { data: res } = await this.$http.put("edituser", this.editForm);
        if (res != "success") return this.$message.error("操作失败!!!");
        this.$message.success("操作成功!!!");
        // 隐藏对话框
        this.editDialogVisible = false;
        this.getUserList();
      });
    },
  },
};
</script>
<style lang='less' scoped>
.el-breadcrumb {
  margin-bottom: 15px;
  font-size: 15px;
}
</style>